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Journal of Micro/Nanolithography, MEMS, and MOEMS

Measuring multielectron beam imaging fidelity with a signal-to-noise ratio analysis
Author(s): Maseeh Mukhtar; Benjamin D. Bunday; Kathy Quoi; Matt Malloy; Brad Thiel
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Paper Abstract

Java Monte Carlo Simulator for Secondary Electrons (JMONSEL) simulations are used to generate expected imaging responses of chosen test cases of patterns and defects with the ability to vary parameters for beam energy, spot size, pixel size, and/or defect material and form factor. The patterns are representative of the design rules for an aggressively scaled FinFET-type design. With these simulated images and resulting shot noise, a signal-to-noise framework is developed, which relates to defect detection probabilities. Additionally, with this infrastructure, the effect of detection chain noise and frequency-dependent system response can be made, allowing for targeting of best recipe parameters for multielectron beam inspection validation experiments. Ultimately, these results should lead to insights into how such parameters will impact tool design, including necessary doses for defect detection and estimations of scanning speeds for achieving high throughput for high-volume manufacturing.

Paper Details

Date Published: 23 August 2016
PDF: 9 pages
J. Micro/Nanolith. MEMS MOEMS 15(3) 034004 doi: 10.1117/1.JMM.15.3.034004
Published in: Journal of Micro/Nanolithography, MEMS, and MOEMS Volume 15, Issue 3
Show Author Affiliations
Maseeh Mukhtar, SUNY Polytechnic Institute (United States)
Benjamin D. Bunday, SUNY Poly SEMATECH (United States)
Kathy Quoi, SUNY CNSE/SUNYIT (United States)
Matt Malloy, SUNY Poly SEMATECH (United States)
Brad Thiel, SUNY Poly SEMATECH (United States)

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